Steam-separator.



T. H. MGGRAW, JR- STBAM SEPARATOR.

APPLICATION FILED JAN.19.1914.

Patented Dec. 29, 1914.

2 SHEETS-SHBET 1.

IN VEN TOR.

H/S ATTORNEY IN FACT T. H. MGGRAW, JR. STEAM SBPARATOR.

APPLICATION FILED JAN. 19, 1914.

1 1 22,784. I Patented Dec. 29, 1914.

'2 SHEETS-SHEET 2.

{511E :I12E -55 3 Y 55-5-35? /7 x x 1 l7 \4 /6 I 1 /6/ w ,5 2/ A5 INVENTOR.

UNITED STATES PATENT orrioa.

THOMAS H. McGRAW, JR., 013 PITTSBURGH, PENNSYLVANIA.

sTEAM-SEPARATOR.

To all whom it may concern:

Be it known that I, THOMAS H. MoGRAw, Jr., a citizen of theUnited States, and a resident of Pittsburgh, in the'county of Allegheny and State of Pennsylvania, have made a new and useful Invention in Steam- Separators, of whichthe following is a specification.

This invention relates to separators or strainers for separating the moisture from steam or other fluids.

An object of this invention is to produce an improved steam. separator which is adapted to be located within and to be supported byv the inclosing shell of the drum or container of a steam generator.

A further object is to produce a separator embodying new and improved details of construction and. which insures efliciency andefiectivenes of operation, and is simpler inthe construction of its operating parts than other separators now in use or known to me.

These and other objects are attained by meansof the apparatus. herein described and illustrated as an embodiment of my invention.

In the drawings accompanying and forming a part of this application: Figure 1 is a fragmental longitudinal sectional view of a steam and water drum of a generator equipped with an embodiment of my invention; Fig. 2 is a transverse sectional view along the line 22 of Fig. 1; and Fig. 3 is a horizontal sectional view along the line 33 Of 2'. I

In carrying out my invention I provide a diaphragm which. extends transversely across the container or drum of the steam generator, and which divides the lower portion of the container or drum into two parts,

in one of which all or a major dportion ofthe steam may be generated, an from the other of which the steam is withdrawn through a steam delivery port or conduit. A separator is mounted near the upper edge of the diaphragm in such a way that it with the diaphragm completely divides the container or drum into two chambers which communicate with each other through apertures formed in the separator and from one of which the steam supply is withdrawn,

as before stated.

' As illustrated, these arator proper consists of cooperating per orated plates which Specification of Letters Patent. Patented Dec. 29, 1914:.

Application filed January 19, 1914. Serial No. 813,077. 7

the perforations'before leaving the generator or container. The plates are so arranged that theperforations of one plate direct the steam passing through them onto an imperforate portion of the next adjacent plate and cause the steam to move through the separator along circuitous paths. With this arrangement the-heavier particles, such as vapor or the globules of water mechanically entrained by the steam, are projected against and adhere to an obstructing surface of the separator, from which they drip or gravitate back into the bottom of the container or drum. The plates forming a part of the separator proper arepreferably so formed and the apertures provided therein are 90 positioned with relation to the special contour of the plates that they accentuate the moisture separating action of the separator by causing the steam to be reversed in its flow through the separator and by directing the separate jets of steam into moisture collecting chanels formed in the plates. Referring now to the drawings, throughout the several views of which like parts are designated by the same reference numer'als: A drum or container 4, which ma form a part of a steam generator, or whic may inclose the generating chamber, is provided at an intermediate point between its ends with a diaphragm or partition 5 which extends transversely across the container and divides the lower portion thereof into two parts. As illustrated, the diaphragm is provided with a flange 8 along its shell engaging edge and is secured to the container tudinal axis of the container, or to a point well above the water line, when the container is adapted to be employed ,as a combination water and steam drum. W 1th the exception of the upper edge, the diaphragm conforms in shape to the contour of the inner face of the shell 6, and the flange 8 lies against the shell'so asto facilitate the o eration of securing the diaphra m to the s ell. Thisarrangement of the diaphragm strengthens .theshell, since the diaphragm forms an'intermediate internalstay for the" vsists of two corrugated plates 12 and 13 which are located in parallel relation to each other and are substantially semi-circular in shape so that their curved edges conform closely to the contour of the upper portion of the shell 6. These plates are so mounted on the diaphragm that their.

curvededges lieadjacent to the shell 6, although it is unnecessary to provide tight joints between the plates and the shell.

- Bolts 15 are illustrated as the means employed for mounting the plates 12 and 13 on the diaphragm and each bolt extends through a spacer 16, located between the plate 13 and thediaphragm, a spacer 17, located between the two plates, and a pad or block 18, against which the securing nut 19 of the bolt rests.

The corrugations in the plates 12 and 13 extend vertically and those in one plate are oppositely disposed with relation to those in the other so that the ridges on the forward or steam receiving side of the plate 12 are located opposite to depressions or channels on the steam receiving side of the plate 13. In addition to this, the apertures of each plate are located in the portions of the plate forming the ridges, on the steam receiving side. This arrangement provides a vertically extending moisture receiving channel between each vertical row of apertures on each plate. As has been stated, the plates are so located that the ridges on the steam receiving side of one plate are located opposite to channels on the steam receiving side of the other plate, and consequently each vertical row of apertures in one plate is oil'set laterally with relation to the vertical rows in the other plate. In addition to this the plates are so located that the apertures in one plate are located in staggered relation with those of the other plate. The steam, therefore, passing through the separator plates is caused to pass along circuitous paths, since the steam passing through the apertures of the plate 12 is directed against or into the depressions or moisture receiving channels of the plate 13,

, and consequently must be reversed in its direction of flow, and also'must pass across a portion of the surface of the plate 13 in order to ass through the apertures of that plate. e line of least resistance to flow of a singe stream of steam issuin from any one of the apertures in the 5m 12 is through any one of the four apertures in the plate 13 around the point of contact of the stream of steam with the plate and consequently the stream will tend to divide into four parts or will flatten out against the surface of the plate 13 while moving toward the apertures formed in it. This phenomenon, together with the reversal in the direction of flow of the steam occasioned by the ridges on the plate 13, insures the separation of moisture from the steam, since the inertia of the water or water vapor held in suspension by the steam will resist the reversal in the direction of its flow to a greater extent than the molecules of dry steam resist this reversal, and consequently the moisture will'be projected against and deposited on the plate 13 and will drip or gravitate back into the water contained in the vessel or drum. The same phenomenon takes place on the steam receiving face of the plate 12, since a relatively small amount of steam will pass through the apertures in that plate without having first come into contact with the surface of'the plate or without having first been reversed in the direction of its flow by the corrugations formed in the plate. Each of the plates 12 and 13 are shown built up of smaller sections suitably secured together to form the semi-circular plate. Any means may be employed for securing these sections together, and as illustrated, I have provided lugs 21 along the edges of the sections by means of which they may be bolted together. 7

In the drawings I have shown a steam delivery pipe 22 projecting into the container and passing rearwardly through the sepa-- rator plates. In order to provide for this construction, each of the plates 12 and 13 is notched out at 23 and a filler 24 is employed. This filler plate is provided with an aperture through which the pipe 22 extends, and it is secured in place between the plates 12 and 13 by any suitable means, such, for example, as bolts 24, it being understood that the edges of the slots formed in the separate plates are inclined inwardly toward the filler plate, so as to reduce the tendency of steam to flow from the chamber 10 into the chamber 11 through the gap between the plates 12 and 13 and the tiller plate. v

The diaphragm 5 is, shownas provided with apertures 25 which form a means of communication between the chamber 10 and the chamber 11. These apertures are located below the water line within the container drum and therefore permit the water to rise I to equal levels on each side of they dia meanneof the chamber 10 from the lower portion of the chamber 11 and reduce a vertical steam drum inv the end 0 the container.

When a steam generator,.such as illus trated, is provided with a separator embodying my invention, the major portion of the steam will be generated in the chamchamber 10.

invention, but I desire to have it under. stood that While I have illustrated and de-' scribed my invention as embodied in a.-

steam separator, it may be employed as a separator or strainer for other fluids, and

that various changes, modifications, and omissions may be made in the apparatus illustrated without departing from the spirit and scope of my invention as set forth by the appended claims.

Having thus described my invention, what I claim is:

1. In combination with a steam and water container of a steam generator, a sepa rator located between the steam generating portion and the steam delivering portion of the container, comprising substantially fiat corrugated plates, located in parallel relation to each other, extending .from the top of the container to a point below the Water line thereof and havin fluid passing perforations formed therein, the perforations being so positioned in the plates that fluid passin through one plate is directed into imper orate channels formed by the corrugations in the/adjacent plate.

2-. A separator, located within and secured to the shell of a fluid container, and comprising perforated, corrugated plates, located in parallel relation to each other and extending across the line of fluid flow through the container, the perforations in each plate being located in the elevations formed on the fluid receiving side of each plate by the corrugations, and the erforations in one late being offset latera with relationto t e perforationsin the ajacent plate. I

3. A se arator located .Within the shell of a fiui container, and comprising perforated, corrugated plates spaced apart, located in paral el relation to each other, and extending across the line of fluid flow through the container, the corrugations in 'forations in the next adjacent plate. r

delivallel perforated plates extending across the rugated and perforated plates spaced apart each plate extending vertically, the perforations in each plate being formed in the ridges on the fluid receiving side of the plate formed by the corrugations and being located in staggered relation with the per- 4. In combination with a fluid "and liquid container, a diaphragm extending across the liquid containing portion of the container and secured to the shell of the container, and a separator mounted on said diaphragm and formin therewith a partition extending transverse y across the container.

5. In combination with a fluid and liquid container, a diaphragm extending across the liquid containing portion of the container and secured to the shell of the con-. tainer, and a separator mounted on said diaphragm, and comprising substantially par- 5 llne of flow of fluid through the perforator. 8

6. The combination with the steam and Water container of a steam generator, a transversely extending diaphragm mounted on tlieshell of the container and extending partially across the container intermediate its ends, and having perforations formed thereinbelow the water line of the container,

and a separator mounted on the upper portion of the diaphragm and comprising corand extending substantially parallel to each other. I

7. In combination with a water and steam container, a'diaphragm located Within, extending partially across and secured to the shell of the container, and a separator mounted on said diaphragm and forming therewith a partition extending transversely across the container.

S. In combination with a water and steam container, a diaphragm located within and extending partially across the container and secured to the container shell at a point between the ends thereof, and a separator no secured to the upper portion of the diaphragm, and comprising corrugated plates, spaced'apart, located in substantially parallel relation and having steam delivery apertures formed therein, the corrugations of H5 7 each plate being located opposite to imperforate portions of the other plate.

9. In combination with the drum of a boiler adapted to be partially filled with steam and partially with water, a verticall extending dual diaphragm partition exten ing from the top of said drum to a point below the water line thereof, and steam ports or passages extending through said 1(). In combination with the steam and Water containerof a steam generator, a transversely extending diaphragm mounted on the shell of the container and extending parlation to each other, each plate having a phragm mounted on the shell and extending plurality of vertically extending rows of fluid delivering apertures formed therein, the apertures in each plate being so formed therein that the fluid streams passing through apertures in.one plate are directed into imperforate channels formed between the rows of apertures in the next plate.

11. In combination with the steam and Water container of a steam generator, a diatransversely across the shell at a point intermediate the ends of the shell, and a separator mounted on the diaphragm and forming therewith a partition extending across the shell and comprising corrugated plates spaced apart and having perforations in the ridges formed by .thecorrugations on the steam-receiving side of the plate, said plates being so located that the corrugations extend vertically and the perforations in one plate are located in staggered relation With the perforations in the next adjacentplate.

In testimony whereof, I have hereunto subscribed my name this 15th day of Jan.,

THOMAS H. MoGRAW, J R. \Vitnesses:

A. A. MoOLUNG, J r., N. L. HOLMES. 

